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Shareholders' Equity and Share Based Compensation - Summary of Performance base restricted share unit activity (Detail) - Performance-Based Restricted Share Unit [Member]
9 Months Ended
Sep. 30, 2023
$ / shares
shares
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]  
Number of Performance-based Restricted Share Units, Beginning balance | shares 30,000
Number of Performance-based Restricted Share Units, Ending balance | shares 20,000
Number of Performance-based Restricted Share Units, Exercisable | shares 20,000
Weighted Average Grant Date Fair Value, Beginning balance | $ / shares $ 8.31
Weighted Average Grant Date Fair Value, Ending balance | $ / shares 8.31
Weighted Average Grant Date Fair Value, Exercisable | $ / shares $ 8.31